Patents/Inventors

Masahiko Yamakawa

KanagawaJP7 patents

6 Patents

US125464432026
Method for Using White Light Source, and White Light Source
SEOUL SEMICONDUCTOR CO., Ltd.
0 cites
US124827942025
White Light Source System
SEOUL SEMICONDUCTOR CO., Ltd.
0 cites
US120720692024
Method for Using White Light Source, and White Light Source
Seoul Semiconductor Co., Ltd.
0 cites
US120235132024
Light Source for Myopia Prevention Article and Method of Using Light Source for Myopia Prevention Article
Tsubota Laboratory, Inc.
0 cites
US119787262024
White Light Source System
SEOUL SEMICONDUCTOR CO., Ltd.
0 cites
US117216752023
White Light Source System
Seoul Semiconductor Co., Ltd.
0 cites